Hydroxyalkyl derivatives of alkylene-bis-hydantoins

ABSTRACT

New diglycidyl ethers of binuclear, five-membered or sixmembered, unsubstituted or substituted, N-heterocyclic compounds containing two NH groups in the molecule and containing added-on butene oxide, produced by reaction of binuclear, five-membered or six-membered, unsubstituted or substituted, N-heterocyclic compounds, such as bis-(hydantoin) or bis-(dihydrouracil) compounds, for example 1,1&#39;&#39;-methylene-bis-(5,5dimethylhydantoin), 1,6-bis-(5,5-dimethylhydantoinyl-3)-hexane or Beta , Beta &#39;&#39;bis-(5,5-dimethylhydantoinyl-3)-diethyl ether, with butene oxide, for example 1,2-butene oxide, to give monoalcohols or dialcohols, and subsequent glydidylation of the OH groups or of the OH group and the NH group to give the corresponding glycidyl ethers.

United States Patent [191 Habermeier et al.

[451 July 8,1975

[ HYDROXYALKYL DERIVATIVES OF ALKYLENE-BIS-HYDANTOINS [73] Assignee: Ciba-Geigy AG, Basel, Switzerland [22] Filed: Jan. 4, 1973 21 Appl. No.: 321,102

Related U.S. Application Data [62] Division of Ser. No. 118,499, Feb. 24, 1971, Pat. No.

[52] U.S. Cl. 260/3095 [51] Int. Cl C07d 49/32 [58] Field of Search 260/3095 [56] References Cited UNITED STATES PATENTS 2,876,062 3/1959 Torke et al. 260/3095 FOREIGN PATENTS OR APPLICATIONS 1,546,270 10/1968 France 260/3095 1,576,669 8/1969 France 260/3095 OTHER PUBLICATIONS Sato, Chem. Abst., Vol. 59, C01. 3908, QDLASI.

Primary ExaminerNatalie Trousof Attorney, Agent, or FirmVincent J. Cavalier [57] ABSTRACT New diglycidyl ethers of binuclear, five-membered or six-membered, unsubstituted or substituted, N- heterocyclic compounds containing two Nl-l groups in the molecule and containing added-on butene oxide, produced by reaction of binuclear, five-membered or six-membered, unsubstituted or substituted, N- heterocycliccompounds, such as bis-(hydantoin) or bis-(dihydrouracil) compounds, for example 1,1- methylene-bis-(S,S-dimethylhydantoin), 1,6-bis-(5,5- dimethylhydant0inyl-3)-hexane or B,Bbis-(5,5- dimethylhydantoinyl-3)-diethyl ether, with butene oxide, for example 1,2-butene oxide, to give monoalcohols or dialcohols, and subsequent glydidylation of the OH groups or of the OH group and the NH group to give the corresponding glycidyl ethers.

5 Claims, N0 Drawings 1 HYDROXYALKYL DERIVATIVES F ALKYLENE-BIS-HYDANTOINS This is a divisional of application Ser. No. 118,499, filed on Feb. 24, 1971 now U.S. Pat. No. 3,821,242.

The subject of the US. Pat. No. 3,679,681 application Ser. No. 1289, Jan. 7, 1970 are new diglycidyl compounds of the general formula wherein Z and Z independent of one another each de note a nitrogen-free divalent radical which is necessary to complete a five-membered or six-membered, unsubstituted or substituted, heterocyclic ring, A represents a divalent aliphatic, cycloaliphatic or araliphatic radical, and in particular preferably represents an alkylene radical, or an alkylene radical interrupted by oxygen atoms, X X Y and Y each denote a hydrogen atom or a methyl group, and m and n each represent an integer having a value of 0 to 30, preferably of O to 4, the sum of m and n having to be at least 1.

The compounds of the formula (1) are manufactured by reacting compounds of the general formula (III) wherein Z Z and A have the same meaning as in the formula (1), with alkene oxides, preferably ethene KJI oxide (ethylene oxide) or propene oxide (propylene oxide), in the presence of a suitable catalyst.

It has now been found that reaction of binuclear N- heterocyclic compounds of the formula (111) with a butene oxide, preferably 1,2-butene oxide, 1,2- cyclopentene oxide or 1,2-cyclohexene oxide in the presence ofa suitable catalyst yields new monoalcohols or dialcohols, which can be reacted, in a known manner, in one stage or several stages, with an epihalogenohydrin or ,B-methylepihalogenohydrin, such as, for example, epichlorohydrin, B-methylepichlorohydrin or epibromohydrin, to give glycidyl compounds.

In comparison to the glycidyl compounds described in the main patent, the new glycidyl compounds are distinguished by considerably lower viscosity, so that apart from being used in the customary casting resin applications they can also be used as, for example, laminating resins.

The subject of the present invention are new diglycidyl ethers of the general formula wherein X X Y and Y each denote a hydrogen atom or a methyl group and Y and Y each denote a methyl or ethyl group, with the sum of the carbon atoms in the two radicals Y and Y or Y and Y always having to be 2, or wherein Y and Y or Y and Y together denote the trimethylene or tetramethylene radical and .wherein Z and Z independently of one another each denote a nitrogen-free, divalent radical which is necessary to complete a five-membered or sixmembered, unsubstituted or substituted, heterocyclic ring, A represents a divalent aliphatic, cycloaliphatic or araliphatic radical, and in particular preferably represents an alkylene radical or an alkylene radical interrupted by oxygen atoms, and m and n each represent an integer having a value of 0 to 30, preferably of O to 4, the sum of m and n having to be at least 1.

The new diglycidyl ethers of the formula (1V) are manufactured by reacting compounds of the general formula wherein Y Y Y Y 2,, Z A, m and n have the wherein Y, is hydrogen, Y is ethyl, or wherein Y, and Y together are trimethylene or tetramethylene; R, and R is hydrogen or lower alkyl of l to 4 carbon atoms or R, and R together are tetramethylene or pentamethylene; and A is alkylene of 1 to 12 carbon atoms or lower alkylene interrupted by one oxygen atom.

In the single-stage process, the reaction of the epihalogenohydrin with a compound of the formula (V)-takes place in the presence. of alkali, sodium hydroxide or potassium hydroxide being used preferably. In the preferentially used two-stage process, the compound of the formula (V) is condensed, in a first stage, with an epihalogenohydrin, in the presence of acid or basiccatalysts, such as preferably tetraethylammonium chloride, to give the halogenohydrin compound, and thereafter the latter is dehydrohalogenated, in a second stage, by means of alkalis, such as potassium hydroxide or sodium hydroxide, to give the glycidyl ether.

The addition of the butene oxide, cyclopentene oxide or cyclohexene oxide to one or both NH groups of the N-heterocyclic compounds of the formula (III) can be carried out in'the presence of either acid or alkaline catalysts, and per equivalent N group of N-heterocyclic compound of the formula (III) a slight excess over the equivalent epoxide groups of the butene oxide is employed.

Preferably, however, alkaline catalysts such as tetraethylammonium chloride or tertiary amines, are used in themanufacture of monoalcohols and dialcohols of the formula (V) in which the sum of m and n equals 1 or 2. However, alkali halides, such as lithium chloride or sodium chloride, can also be used successfully for this addition reaction; the reaction also takes place without catalysts.

In the preparation'of dialcohols of the formula (V) in which the sum of m and n is greaterthan 2, it is preferred to start from the simple dialcohols of the formula (V) in which m and n are each 1, and to add further bute'ne oxide to the two OH'groups of thiscompound, in

the presence of acid catalysts.

The binuclear N-heterocyclic compounds of the formula(III) used for the manufacture of the new butene oxide addition products of the formula (V) are above all bis-(hydantoin) compounds or bis-(dihydro-uracil) compounds, in which the two N-heterocyclic rings are linked to one another via an alkylene bridge, for example 'a methylene group, which is bonded to an endocyclic nitrogen atom of each of the heterocyclic rings in question. I I

A first category of such bis-(hydantoin) compounds corresponds to the general formula wherein R is an aliphatic, cycloaliphatic or araliphatic radical, especially an alkyl radical or an alkylene radical interrupted by oxygen atoms, and R, R R and R each denote a hydrogen atom or a lower alkyl radical with 1 to 4 carbon atoms, or wherein R and R or R and R togetherform a tetramethylene or pentamethylene radical. Bis-(5,5-dimethyl-hydantoinyl-3 methane, 1 ,2-bis-(5 ',5 '-dimethyl-hydantoinyl-3 ethane, l ,4-bis-( 5 ',5 -dirnethyl-liydantoinyl-3 butane, 1 ,6-bis-( 5 ',5 '-dimethyl-hydantoinyl-3 hexane, l, l 2-bis-(5 ',5 '-dimethyl-hydantoinyl-3 dodecane and B,B'-bis-(5',5'-dimethyl-hydantoinyl- 3')-diethyl ether may be mentioned.

A preferentially used category of bis-(dihydrouracil) compounds corresponds to the general formula wherein R R R R R and R independently of one another each denote a hydrogen atom or a lower alkyl radical with 1 to 4 carbon atoms.

1,1 '-l /lethylene-bis-( 5 ,o-dihydrouracil), 1,1- methylene-bis-(6-methyl-5,6-dihydrouracil) and 1,1- methylene-bis-(5,S-dimethyl-S,6-dihydrouracil) may be mentioned.

The diglycidyl compounds according to the invention, of the formula (1V), react with the usual curing agents for polyepoxide compounds and can therefore be crosslinked, or cured, by addition of such curing agents, analogously to other polyfunctional epoxide compounds or epoxide resins. Possible curing agents of this nature are especially polycarboxylic acid anhydrides, such as, for example, hexahydrophthalic anhydride or phthalic anhydride, and also polyamines, such as for example triethylenetetramine or 3,5,5-trimethyl- 3(aminomethyl)-cyclohexylarnine.

The curable epoxide resin mixtures are above all employed in the fields of surface protection, the electrical industry, laminating processes and the building industry.

in the examples which follow, unless otherwise stated, parts denote parts by weight and percentages denote percentages by weight. The relationship of parts by volume to parts by weight is as of the millilitre to the gram.

To determine the mechanical and electrical properties of the curable mixtures described in the examples which follow, sheets of size 92 X 41 X 12 mm were manufactured fordetefrmining the flexural strength, deflection, impact strength and waterabsorption. The test specimens (60 X 10 X 4 mm) for determining the water absorption, and for the flexural test and impact test (VSM 77,103 and VSM 77,105 respectively) were machined from the sheets. I

Test specimens of sizes 120 X 15 X'l0 mm were in each case cast for determining the heat distortion point according to Martens (DlN 53,458).

Sheets of sizes 120 X 120 X 4 mm were cast for determining the arcing resistance.

MANUFACTURE OF THE STARTING SUBSTANCES EXAMPLE A:

1,1-Methylene-bis-[3-(2-hydroxyn-butyl)-5,5- dimethylhydantoin] A suspension of 134.1 g of 1,l'methylene-bis-(5,5- dimethylhydantoin) (0.5 mol) and 2.68 g of lithium chloride in 350 ml of dimethylformamide is stirred at 60C. 83.0 g of 1,2-butene oxide (1.15 mols) are added dropwise over the course of 30 minutes; the mixture is then stirred for a further 4% hours at 75C, whereupon a clear solution is produced. when the latter has been cooled to room temperature, it is filtered, and the clear, colourless solution is concentrated at 70C on a rotary evaporator, under 15 mm Hg. Thereafter, the residue is dried to constant weight at 90C/CC/10.1 mm Hg. 206.1 g 100% of theory) of a colourless, clear, highly viscous resin are obtained; its IR spectrum no longer shows any N-l-l absorptions, but displays the OH frequencies. Elementary analysis shows the following:

Accordingly, the new diol has the following structure:

169.2 g of 1,6-bis-(5,5-dimethylhydantoinyl-3')- hexane (0.5 mol) and 0.848 g of lithium chloride are dissolved in 300 ml of dimethylformamide and the solution is stirred at 65C. 144.2 g of 1,2-butene oxide (2.0 mol) are added over the course of one hour. Thereaf ter, the reaction mixture is stirred for a further 20 hours at C and cooled to room temperature, and the slight cloudiness originating from the hydantoin raw material is removed by filtration. The clear solution is completely concentrated on a rotary evaporator at 75C, under a waterpump vacuum; thereafter, the residue is dried to constant weight at 0.2 mm Hg and C. 206.5 g of a pale yellow, clear, transparent, highly viscous substance (85.8% of theory) are obtained, consisting mainly of the compound of the following structure:

B,B-Bis-[1-(2-hydroxy-n-butyl)-5,S-dimethylhydantoinyl-3]-diethyl ether.

A solution of 375 g of B,B'-bis-(5,5- dimethylhydantoinyl-3)-diethyl ether (1.15 mols) and 1.95 g of lithium chloride in 500 ml of dimethylformamide is prepared at 60C. 332.0 g of 1,2-butene oxide (4.60 mols) are added dropwise to this solution over the course of 45 minutes, whilst stirring. The reaction mixture is stirred for a further 15 hours at 80C and filtered, and the clear, colourless solution is concentrated at 70C on a rotary evaporator, under a waterpump vacuum. The residue is then dried to constant weight under 0.1 mm Hg at C bath temperature. A highly viscous, clear, transparent, pale yellowish-coloured substance is obtained in yield (541.2 g). The infrared spectrum shows, through the absence of the amide NH absorption and through the presence of a strong OH absorption, that the new substance has the following structure:

, A suspension of 148.2 g of 1,1-methylenebis-(5,5-

216,0 g of cyclohexene oxide (2,2 mols) are added dimethyl-S,6-dihydrouracil) (0.5 mol) in 350 ml of didropwise over the course of 120 minutes to a clear son y amid i8 Stirred with 1.06 g of lithium chlolution of 268.1 g of l,l-methylene-bis-(5,5- l ride at 65C. 992g of 1,2-butene oxide (1.376 mols) di h lh d i (10 l) d 2 g f li hi are added dropwise over the course of 2 hours, whilst chloride i 550 1 of dimethylformamide, at 100 to stirring. The temperature is then raised to 103-105C 102C. A slightly yellowish, clear solution results. After Course of 150 a Clear, colourless 80111- the dropwise addition, the solution is stirred for a fur- {1011 e y P uced. TlllS 1s stirred for a further 10 h 300 minutes at 125 The Solution is subsehours at this temperature and then cooled to room temquently concentrated to dryness on a rotary evaporator p and Worked p In accordance with Example at 80C under a waterpump vacuum, and the residue is 0 g of the elude l y subsequently dried to constant weight at 110C under y y' y ll y v y 0.2 mm Hgf=46l g of a colourless crystal mass (98.4% (100% Of y) are Obtalned a Clear, colourless,

of theory), melting at 216220C, are obtained. 25 Viscous liquid- For purification, 458 g of the crude product are re- MANUFACTURING EXAMPLES crystallised from a mixture of 500 ml of dimethylform- EXAMPLE 1 amide and 100 ml of water. 378 g of fine, colourless crystals (82.6% of the theoretical amount) are obtained. The purified product melts at 228229.8C.

Th'e proton-magnetic resonance spectrum (60 Mc 205.9 gof the 1,1'-methylene-bis-[3-(2"-hydroxy-nl-l-NMR, recorded in CDCl;, against tetramethylsilane butyl)-5,5-dimethylhydantoin] manufactured accordasthe internal standard) shows, through the presence ing to Example A (0.499 mol) together with 925 g of of the following signals, that the formula given below epichlorohydrin (10 mols) and 2.5 g of tetrael ,1 '-Methylene-bis- 3-( 2 -glycidyloxy-n-butyD-S ,5- dimethylhydantoin] is to be ascribed to the product obtained: thyleneammonium chloride are stirred for one hour at 5.15 Singlet NCH N 2 protons 3.5 4.6 Multiplet NCH-( IH-Ol-l 6 protons 1.3 2.5 Multiplet of remaining CH,-, and CH protons (28) H C CH H C II ll EXAMPLE E 90C. A circulatory distillation is then started at v 60C/60-90 mm Hg, with vigorous stirring, and 103.0 1,1'-Methylenebis-(3-(2"-hydroxy-n-butyl)-5- g of strength aqueous sodium hydroxide solution isopropylhydantoin) 50 are slowly added dropwise over the course of 2 hours.

i At the same time, the water present in the reaction mix- A Suspension of g of L Y -U- ture is continuously azeotropically removed from the isopropylhy n) F 9 200 m1 of dimethylcircuit and separated off. After the addition of the soformamlde and 053 g of llthlum chloride is stirred at dium hydroxide solution, the mixture is distilled for a 495 8 0f 1,2-b11t6ne Oxide are added further 15 minutes to remove the last remnantsrof wadropwise thereto, over the course of 120 minutes. The Th di hl id f d i filt red ff and temperature is then raised to 100C over the course of i d i h 100 1 f i hl h d i d h minutes and the mixture is allowed to react for a furbined epichlorohydrin solutions are extracted by shakther 9 hOUI'SWhllSt stirring, a clear solution being prO- ing with 200 ml of water, so as to remove traces of soduced thereby. diumv hydroxide and sodium chloride. The organic This is cooled to room temperature and filtered, and 60 phase is separated off and completely concentrated at the filtrate iS concentrated to dryness at C/ 1 5 mm 60C on a rotary evaporator under a slight vacuum; the Hg Thereafter, the lfesidue is treated at mm residue is then dried to constant weight at 80C under Hg until constant weight is reached. 110.5 g (corre- 0.1 mm Hg. sponding to of'theory) of a colourless, clear, ,vis- 65 220.4 g (81.2% of theory) of a light brown, viscous, cous substance are obtained, consisting mainly of 1,1 liquid epoxide resin containing 3.2 epoxide equivalents methylenebis-(3-[2"-hydroxy-n-butyl]-5- per kg (84.3% of theory) are obtained,'corresponding isopropylhydantoin). substantially to the following formulaz $1 H3 'H-t fl CCCH;, lrl,,c c -c O l CH -CHCH OCHCH N /N cl-l. lv\ r\l cli. cli o cl-l -cl-l crl t r t CH3 0 CH3 EXAMPLE 2 course of 2 hours with 100 g of 50% strength aqueous 1 6 Bi [1' (2 l id l b l) s"5' sodium hydroxide solution, in accordance with Examdimethylhyd'antoinylgIphexane' ple 1. The working up and the isolation of the reaction 0 4 l f th 1 6 Bi product are also effected exactly as in Example 1. (2 -l l dir l ifl-r i bii li5 5-d i n ie th ylhy anioinyl 3]- 193 g Ofa cfystanising yellowish of h hexan: mafiufactuzed acording to Example B 7410 ory) are obtained. The epoxide content is 2.75 epoxide g of epichlorohydrin (8 mols) and g of tetraetlwb equivalents per kg (corresponding to 80% of theory). ammonium chloride is stirred for 90 minutes at 90C. 20 The P f g: resonange g glg l o 5 26 A circulatory distillation is then started at 60C/55-85 F Q slgnals at an i an mm Hg, with vigorous stirring, and 81.6 g of a 50% 18 In other e s apart from the Slgnals of O strength aqueous sodium hydroxide solution are added groups, ldehtlcal Wlth the Spectrum of the Starting dropwise over the course of 120 minutes. At the same P time, the water present in the reaction mixture is azeo- EXAMPLE 5 tropically removed from the circuit and separated off. Thereafter, the sodium chloride formed is filtered off 88.1 g of the 1,1'-methylene-bis(3-[2-hydroxy-nand rinsed with 60 ml of epichlorohydrin, and the combutyl]-5-isopropylhydantoin) manufactured according bined epichlorohydrin solutions are extracted by shakto Example E (0.2 mol), 925 g of epichlorohydrin and ing with 150 ml of water, to remove traces of sodium 1.5 g of 50% strength aqueous tetraethylammonium hydroxide and Sodium Chloride- The Organic Phase is chloride solution are subjected to an azeotropic circuseparated Off and Completely concentrated on a rotary latory distillation at 60C reaction temperature and evaporator at 60C, under a slight vacuum. Thereafter, 60 85 mm Hg vacuum, whilst Stirring; at the Same time, the residue is dried to Constant Welght at 80 C under the bath temperature is 142-1 45C. When the distillamm Hg tion is well under way, g of 50% strength aqueous 210-5 3 of a pale yellow Vlscous (85% of sodium hydroxide solution are added dropwise over the my) are Obtained" h epoxide Conmm 1S equwa' course of 120 minutes, and at the same time the water g (corresphhdmg to 796% of theory) The total present in the reaction mixture is continuously sepachlorme Content rated off. After completion of the addition of sodium EXAMPLE 3 40 hydroxide solution, distillation is continued until the I last traces of water have been separated off; 24 ml 1 1 11 3 p jg ffgig g :252? (85.5% of theory) are found. Working up is carried out lmet Y hy an Omy y analogously to Example 2, and a clear, liquid, practi- 517.0 g of thfi B,, y Y' cally colourless resin of 2.96 epoxide equivalents/kg is dimethylhydantoinyl-3]-diethyl ether manufactured Obtained according to Example C (1.1 mols) are mixed with 2035 g of epichlorohydrin (22 mols) and 5.45 g of tet- EXAMPLE 6 raethylammonium chloride. This mixture is sticllrred Ctl'or 8&1 g of 1,1l methylenebis (3 [zll hydroxy n 1 hour at 90C. it is then dehydrohalogenate as escribed in Example 2 using 228.7 g of strength 50 butyl] 55 dlmethyl dlhydrouraclll mol) are reacted with 925 g of epichlorohydrin, using 1.5 g of aqueous sodium hydroxide solution and azeotroplcally removin Water at Working up is also effected in 50% strength aqueous tetraethylammonium chloride d g h E 2 solution as an auxiliary, in accordance with Example 5, accor ance 3; g e 1 r in at the dehydrohalogenation being carried out with 40 g of 54.30 g (85 0 O eory) O a vlscolis es 6 50% strength aqueous sodium hydroxide solution preobtalried The epoxide content is 2.65 equivalents/kg 777 Th t ta] Chlorine Content is 1 1% clsely in accordance with Example 5. Working up takes 0 O t my place as has been described in Example 2. 88 g (80% EXAMPLE 4 of theory) of a colourless, liquid, clear epoxide resin 1 y g y y y y y having 3.02 epoxide equivalents per kg are obtained.

dirnethylhydantoin] A mixture of 232 g of the 1,1 -methylene-bis-[3-(2- EXAMPLES F USES hydroxycyclohexyl)-5,5-dimethylhydantoin] manufac- Examplel tured according to Example D (0.5 mol), 2.48 g of tet- 1 12,5 g f h 1 1 h 1 bi [3 2" ramethylammonium chloride and 1388 g of epichloroglycidyloxy-n-butyl)-5,5-dimethylhydantoin[ manufachydrin (15 mols) is heated to the boil at 1161 17C for 60 minutes, with good stirring.

The mixture is then dehydrohalogenated over the tured according to Example 1, having 3.2 epoxide equivalents/kg, are mixed with 47.3 g of hexahydrophthalic anhydride at C. The homogeneous, clear melt is cured in aluminium moulds over the course of 3 hours at 80C and 12 hours at 150C.

Mouldings having the following mechanical properties are obtained:

Flexural strength (VSM 77,103) 9.61 kp/rnm Deflection (VSM 77,103) 3.7 mm Impact strength (VSM 77,105) 12.25 cmkp/cm Water absorption (4 days/20C) 0.58

Tensile strength (VSM 77.101) 4.89 kp/mm EXAMPLE ll Flexural strength (VSM 77.103)

cmkp/cm Impact strength (VSM 77,l05) Water absorption (4 days/20C) EXAMPLE III Tracking resistance (VDE 0303) KA3b Arcing resistance (DIN 53,484) L4 Breakdown voltage, 23C (instantaneous value) 221 'kV/cm Dielectric loss factor (50 c/s) tg 8 at 24C 0.008

, at 40C 0.037 Volume resistance p 24C 2.4 X 9 cm We claim: 1. An alcohol of the formula:

wherein Y, is hydrogen, Y is ethyl, or wherein Y, and Y together are trimethylene or tetramethylene; R, and R is hydrogen or lower alkyl of l to 4 carbon atoms or R, and R together are tetramehtylene or pentamethylene; and A is alkylene of l to 12 carbon atoms or lower alkylene interrupted by one oxygen atom.

2. The alcohol of claim 1 which is l,1'-Methylenebis-[ 3-( 2 '-hydroxy-n-butyl )-5 ,5 -dimethylhydantoin 3. The alcohol of claim 1 which is 1,6-Bis-[l'-(2"- hydroxy-n-butyl)-5 ,5 '-dimethyl-hydantoinyl-3 hexane. I

4. The alcohol of claim 1 which is B,B'-Bis-[ l-(2'- hydroxy-n-butyl)-5 ,5-dimethylhydantoinyl-3 ]-diethyl ether.

5. The alcohol of claim 1 which is l,1'-methylenebis-[ 3-( 2 '-hydroxy n-buty )-5-isopropylhydantoin 

1. AN ALCOHOL OF THE FORMULA:
 2. The alcohol of claim 1 which is 1,1''-Methylene-bis-(3-(2''''-hydroxy-n-butyl)-5,5-dimethylhydantoin).
 3. The alcohol of claim 1 which is 1,6-Bis-(1''-(2''''-hydroxy-n-butyl)-5'',5''-dimethyl-hydantoinyl-3'')-hexane.
 4. The alcohol of claim 1 which is Beta , Beta ''-Bis-(1-(2''-hydroxy-n-butyl)-5,5-dimethylhydantoinyl-3)-diethyl ether.
 5. The alcohol of claim 1 which is 1,1''-methylene-bis-(3-(2''''-hydroxy-n-buty)-5-isopropylhydantoin). 